STEERING COLUMN ASSEMBLY REASSEMBLY

Note


  • When using a vise, do not overtighten it.

  • Do not drop the power steering ECU with motor assembly, strike it with tools or subject it to impacts.

  • If the power steering ECU with motor assembly is subjected to an impact, replace it with a new one.

  • Do not pull the wire harness of the electric power steering column sub-assembly.

  • Do not allow any moisture to come into contact with the power steering ECU with motor assembly.

  • Do not loosen any bolts not mentioned in the procedure.


  1. INSTALL IGNITION OR STARTER SWITCH ASSEMBLY (w/o Smart Entry and Start System)


    1. A01EUY0

      Engage the 2 claws to install the ignition or starter switch assembly to the steering column upper bracket assembly.

  2. INSTALL IGNITION SWITCH LOCK CYLINDER ASSEMBLY (w/o Smart Entry and Start System)


    1. A01EXT0E01
      Text in Illustration
      *a LOCK
      *b ACC

      Make sure that the ignition switch lock cylinder assembly is in the ACC position.

    2. Install the ignition switch lock cylinder assembly to the steering column upper bracket assembly.

    3. Make sure that the ignition switch lock cylinder assembly is securely installed.

  3. INSTALL KEY INTERLOCK SOLENOID (w/o Smart Entry and Start System)


    1. A01EUAC

      Engage the claw to install the key interlock solenoid to the steering column upper bracket assembly.

    2. Install the screw.

  4. INSTALL UNLOCK WARNING SWITCH ASSEMBLY (w/o Smart Entry and Start System)


    1. A01ET8C

      Slide the unlock warning switch assembly and engage the 2 claws to install the unlock warning switch assembly to the steering column upper bracket assembly as shown in the illustration.

  5. INSTALL TRANSPONDER KEY AMPLIFIER (w/o Smart Entry and Start System)


    1. A01ET5E

      Align the transponder key amplifier with the steering column upper bracket assembly. Tilt the transponder key amplifier slightly and slide it into position.

    2. Push the transponder key amplifier, and engage the 2 claws to install the transponder key amplifier to the steering column upper bracket assembly.

  6. INSPECT STEERING LOCK OPERATION (w/o Smart Entry and Start System)


    1. A01EYPI

      Check that the steering lock mechanism is activated when the key is removed.

    2. A01EVYEE01
      Text in Illustration
      *a LOCK
      *b ACC

      Check that the steering lock mechanism is deactivated when the key is inserted and turned to the ACC position.

      If there is any abnormality, replace the ignition switch lock cylinder assembly or steering column upper bracket assembly with a new one.

  7. INSTALL POWER STEERING ECU WITH MOTOR ASSEMBLY (for Manual Tilt and Manual Telescopic Steering Column)


    1. Install a new electric power steering motor shaft damper to the electric power steering column sub-assembly.

    2. Install a new electric power steering motor shaft spacer to the electric power steering column sub-assembly.

    3. A01EX68E02

      Temporarily install the power steering ECU with motor assembly to the electric power steering column sub-assembly with 3 bolts.

      Note


      • Bolt (A) is shorter than bolt (B). Make sure to install them to the correct positions.

      • When temporarily installing the 3 bolts to the power steering ECU with motor assembly, do not tighten them all the way down.

    4. A01ETSCE02
      Text in Illustration
      *1 Service Nut

      Install the 2 service nuts to the steering main shaft.

      Recommended service nut
      Thread diameter
      12.0 mm (0.472 in.)
      Thread pitch
      1.25 mm (0.0492 in.)

    5. Simultaneously rotate the service nut that was installed first counterclockwise and rotate the service nut that was installed second clockwise to lock them.

      Note

      Do not apply excess torque to the service nuts by using a tool such as an impact wrench.

      Tech Tips

      These nuts are installed to turn the steering main shaft. They should be removed after inspecting the steering main shaft rotating torque.

    6. A01EUJ2E01
      Text in Illustration
      *1 Aluminum Plate
      *2 Wooden Block

      Secure the steering column assembly in a vice using aluminum plates as shown in the illustration.

      Note


      • Do not overtighten the vice, as the steering column assembly may become deformed.

      • Secure the steering column assembly so that the power steering ECU with motor assembly is directly upright.

      • Support the steering column assembly with a wooden block or similar item to ensure that it does not fall.

    7. A01ET84

      Turn the steering main shaft once 180 degrees to the left and then 180 degrees to the right at a speed of 60 rpm, and repeat 2 to 3 times to adjust the axis of the power steering ECU with motor assembly.

    8. Tighten the 3 bolts.

      Torque:
      19 N*m  { 189 kgf*cm, 14 ft.*lbf }

      Note

      Make sure not to move the power steering motor assembly after adjusting the axis.

    9. A01EXKR

      Measure the turning torque of the steering main shaft.

      Torque:
      Turning torque
      1.0 to 1.8 N*m  { 10 to 18 kgf*cm, 9 to 15 in.*lbf }

      Note

      Ensure that there is no abnormal resistance during rotation.

      If the torque is not as specified, readjust the axis of the power steering ECU with motor assembly.

    10. Remove the 2 service nuts from the steering main shaft.

    11. Connect the connector to the power steering ECU with motor assembly.

  8. INSTALL ECU WIRE SUB-ASSEMBLY (for Manual Tilt and Manual Telescopic Steering Column)


    1. Engage the 2 wire harness clamps to install the ECU wire sub-assembly.

    2. Connect the 2 connectors to the power steering ECU with motor assembly.

  9. INSTALL POWER STEERING ECU WITH MOTOR ASSEMBLY (for Power Tilt and Power Telescopic Steering Column)


    1. Install a new electric power steering motor shaft damper to the electric power steering column sub-assembly.

    2. Install a new electric power steering motor shaft spacer to the electric power steering column sub-assembly.

    3. A01ESRXE01

      Temporarily install the power steering ECU with motor assembly to the electric power steering column sub-assembly with 3 bolts.

      Note


      • Bolt (A) is shorter than bolt (B). Make sure to install them to the correct positions.

      • When temporarily installing the 3 bolts to the power steering ECU with motor assembly, do not tighten them all the way down.

    4. A01ETSCE02
      Text in Illustration
      *1 Service Nut

      Install the 2 service nuts to the steering main shaft.

      Recommended service nut
      Thread diameter
      12.0 mm (0.472 in.)
      Thread pitch
      1.25 mm (0.0492 in.)

    5. Simultaneously rotate the service nut that was installed first counterclockwise and rotate the service nut that was installed second clockwise to lock them.

      Note

      Do not apply excess torque to the service nuts by using a tool such as an impact wrench.

      Tech Tips

      These nuts are installed to turn the steering main shaft. They should be removed after inspecting the steering main shaft rotating torque.

    6. A01EX7WE01
      Text in Illustration
      *1 Wooden Block

      Securely set the steering column assembly on a wooden block or similar item.

      Note


      • Be sure to hold the steering column assembly by hand so that it will not move while servicing.

      • Make sure that the power steering motor assembly is facing upward.

    7. A01ESUR

      Turn the steering main shaft once 180 degrees to the left and then 180 degrees to the right at a speed of 60 rpm, and repeat 2 to 3 times to adjust the axis of the power steering ECU with motor assembly.

    8. Tighten the 3 bolts.

      Torque:
      19 N*m  { 189 kgf*cm, 14 ft.*lbf }

      Note

      Make sure not to move the power steering motor assembly after adjusting the axis.

    9. A01EYRH

      Measure the turning torque of the steering main shaft.

      Torque:
      Turning torque
      1.0 to 1.8 N*m  { 10 to 18 kgf*cm, 9 to 15 in.*lbf }

      Note

      Ensure that there is no abnormal resistance during rotation.

      If the torque is not as specified, readjust the axis of the power steering ECU with motor assembly.

    10. Remove the 2 service nuts from the steering main shaft.

    11. Connect the connector to the power steering ECU with motor assembly.

  10. INSTALL ECU WIRE SUB-ASSEMBLY (for Power Tilt and Power Telescopic Steering Column)


    1. Engage the 2 wire harness clamps to install the ECU wire sub-assembly.

    2. Connect the 2 connectors to the power steering ECU with motor assembly.

  11. INSTALL POWER STEERING ECU PROTECTOR


    1. Install a new power steering ECU protector to the power steering ECU with motor assembly.

  12. INSTALL MULTIPLEX TILT AND TELESCOPIC ECU (for Power Tilt and Power Telescopic Steering Column)


    1. Engage the claw to install the multiplex tilt and telescopic ECU to the electric power steering column sub-assembly.

  13. INSTALL STEERING COLUMN UPPER WITH SWITCH BRACKET ASSEMBLY (w/o Smart Entry and Start System)


    1. Secure the steering column assembly in a vise.

    2. A01EW1T

      Temporarily install the steering column upper with switch bracket assembly to the steering column assembly with 2 new tapered-head bolts.

    3. Tighten the 2 tapered-head bolts until the bolt heads break off.

  14. INSTALL STEERING LOCK ACTUATOR ASSEMBLY (w/ Smart Entry and Start System)

    Tech Tips

    When replacing the steering lock actuator assembly, refer to Service Bulletin.


    1. for Manual Tilt and Manual Telescopic Steering Column


      1. Secure the steering column assembly in a vise.

      2. A01EY0H

        Temporarily install the steering lock actuator assembly to the steering column assembly with 2 new tapered-head bolts.

      3. Tighten the 2 tapered-head bolts until the bolt heads break off.

    2. for Power Tilt and Power Telescopic Steering Column


      1. A01EVC0

        Temporarily install the steering lock actuator assembly to the steering column assembly with the 2 new tapered-head bolts.

        Note

        Be sure to use a new tapered-head bolt.

      2. Tighten the 2 tapered-head bolts until the bolt heads break off.